MCP73832T-4ADI/OT

Overview

The MCP73832T-4ADI/OT is a single-cell lithium-ion or lithium-polymer battery charge management controller manufactured by Microchip Technology. It operates within a supply voltage range of 3.75 V to 6 V and features an output voltage of 4.4 V, suitable for specific cell configurations. The device supports a programmable charging current up to 500 mA and utilizes an SOT-23-5 surface-mount package with five pins. It functions reliably across an industrial temperature range from -40 °C to +85 °C.

Feature Summary

• Supports constant-current and constant-voltage charging profiles for single-cell lithium-ion and lithium-polymer batteries
• Integrates thermal regulation to automatically reduce charging current during high-temperature conditions
• Includes automatic recharge functionality that resumes charging when battery voltage drops below the threshold

Applications

• Portable electronic devices requiring single-cell battery management
• Consumer electronics utilizing lithium-ion or lithium-polymer power sources
• Industrial instrumentation with limited space constraints

Procurement Notes

Verify the exact suffix '4ADI' against official Microchip documentation to confirm the 4.4 V output specification, as standard variants typically use 4.2 V. Ensure the SOT-23-5 package matches the design footprint. Confirm RoHS compliance status through the manufacturer's latest release notes before finalizing procurement.

Selection Notes

Select this component when a 4.4 V charging profile is required for specialized lithium cells rather than the standard 4.2 V. The SOT-23-5 package offers a compact solution for space-constrained designs. Consider the 500 mA maximum current limit for applications not requiring higher capacity charging speeds.

Part Context

This part belongs to the MCP7383x series of charge management controllers, designed for low-cost, high-performance battery charging in portable applications. The series includes variants with different output voltages and packages, such as DFN and MSOP, to accommodate diverse board layout requirements.

Replacement Considerations

MCP73832T-2ATI/OT (4.2 V output)

FAQ

What is the specific output voltage of the MCP73832T-4ADI/OT?

The MCP73832T-4ADI/OT has a fixed output voltage of 4.4 V, distinguishing it from standard 4.2 V variants.

Does the MCP73832T-4ADI/OT include thermal regulation?

Yes, the device incorporates thermal regulation that reduces the charging rate if the die temperature reaches a predetermined limit.